Home / 155,081.04-214,018.44-88,019.28

Finding the Fourth Proportional to 155,081.04, 214,018.44 and 88,019.28

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Solution

The fourth proportional to 155,081.04, 214,018.44 and 88,019.28 is: 121,470.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,081.04 : 214,018.44 = 88,019.28 : x
  2. Step 2: Convert to fraction form
    155,081.04/214,018.44 = 88,019.28/x
  3. Step 3: Cross multiply
    155,081.04x = 214,018.44 × 88,019.28
  4. Step 4: Simplify right side
    155,081.04x = 18,837,748,995.52
  5. Step 5: Solve for x
    x = 18,837,748,995.52/155,081.04
  6. Step 6: Final answer
    x = 121,470.36

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.